Sebastian

Sebastian runs a makeshift shop in which he sells items and supplies to prisoners in exchange for any research that they are carrying. He also supplies items to the player through Dead Drops, requesting Kroner in exchange for items to be left at the Submarine Dock. Sebastian does not see convicts sent by Urbanshade as his enemies and is willing to help them in exchange for their help. The more times you exit and enter his shop, the more annoyed he gets, eventually kicking you out.

Sebastian can also be seen while the player is viewing Documents, being the one who shows the documents to the player. He will often reply with snarky or comedic comments about each monster. Interestingly, Sebastian has been forbidden from showing Mr. Lopee's document.

As of the Friendly Fire update, Sebastian is capable of harming/killing the player if one flashes him with a Flash Beacon. Upon using a Flash Beacon on Sebastian for the first time, he will grunt, pick up said player, and warn them to not do so again. Sebastian will then break the player's Flash Beacon before throwing them to the ground, dealing 50 DMG. If any player decides to flash him again, Sebastian will instead pull out a gun and shoot said player, instantly killing them. He will also tell said killed player that he warned them and does not show them the document on him.